What's the easiest way to seal a hole in the outside wall of a garage?

by Lori
Could expanding foam work? It's in an area not very visible.
  9 answers
  • Oliva Oliva on Jul 01, 2018

    Make sure you use the right sealant, or it could expand too much, causing further damage. If it's concrete, mortar/concrete repair for outdoor surfaces should work.

  • ☘️ TxBella ☘️ TxBella on Jul 01, 2018

    Hi Lori! Yes Expanding foam would work nicely. Unless it’s a large section and it would have to be a very large section. Expanding foam goes a long way!


  • Chubby58 Chubby58 on Jul 01, 2018

    Looks like wood? Maybe you could possible cut a piece to fit in there and use some construction adhesive to hold it. Then put some caulking to fill in any little tiny spaces, then prime and paint.

  • Deb K Deb K on Jul 01, 2018

    You will need to put some sort of backing on this before you spray the foam. then you should be able to trim it and paint it once it sets.

  • Emily Emily on Jul 01, 2018

    It should be repaired with wood. Then it looks like it might need a paint job too. Here are steps to repair a slightly smaller gap on the edge of our porch.

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    • Lori Lori on Jul 02, 2018

      Haha, yes, it DOES need to be painted! We were prepping when we found the hole. :D

  • Sharon Sharon on Jul 01, 2018

    FYI don't forget to use a sealer for moisture protection

  • Lori Lori on Jul 02, 2018

    Thanks for the advice everyone!

  • Dee Dee on Oct 11, 2022

    I would cut a piece of wood to fit in the hole. Then I would use the foam sealant. Cut it level to the area and paint.

  • Mogie Mogie on Oct 11, 2022

    Just replace the rotten part of the wood with new wood and then paint everything should look just fine.